3 years ago

Given matrix A below, calculate det[A] twice using minors and cofactors

1 answer:

5 0

Answer:

a. 3(16-21) - 4(8-18) +5(7-12) = -15 + 40 - 25 = 0

b. 3(21-24) - 5(7-12) + 8(4-6) = -9 + 25 - 16 = 0

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